Heart rate variability, vagal activity and the pulse of inflammation
نویسندگان
چکیده
منابع مشابه
Norms of vagal nerve activity, indexed by Heart Rate Variability, in cancer patients.
Recent research has begun to show the role of the activity of the vagus nerve in cancer prognosis. However, it remains unknown whether cancer severity can impair vagal nerve activity. This study combined data (N=657) of five different cancers (colorectal, pancreas, prostate, lung and ovarian) concerning patients' Heart Rate Variability (HRV), a vagal nerve activity index. These data were compar...
متن کاملResting vagal activity in schizophrenia: meta-analysis of heart rate variability as a potential endophenotype.
BACKGROUND Cardiac vagal tone, indexed by heart rate variability (HRV), is a proxy for the functional integrity of feedback mechanisms integrating central and peripheral physiology. AIMS To quantify differences in HRV in individuals with schizophrenia compared with healthy controls. METHOD Databases were systematically searched for studies eligible for inclusion. Random effect meta-analyses...
متن کاملComparison of Pulse Rate Variability and Heart Rate Variability for Hypoglycemia Syndrome.
BACKGROUND Heart rate variability (HRV) is a signal obtained from RR intervals of electrocardiography (ECG) signals to evaluate the balance between the sympathetic nervous system and the parasympathetic nervous system; not only HRV but also pulse rate variability (PRV) extracted from finger pulse plethysmography (PPG) can reflect irregularities that may occur in heart rate and control procedure...
متن کاملLevel of agreement between heart rate variability and pulse rate variability in healthy individuals.
BACKGROUND AND OBJECTIVE According to international standards, autonomic function is assessed by heart rate variability (HRV) calculated from R-R intervals obtained with an electrocardiogram (ECG). However, intra-operative movement artefacts and electrical interference may complicate R-wave detection. Pulse rate variability (PRV) derived from continuous blood pressure measurements may provide a...
متن کاملEffects of repetitive bursts of vagal activity on heart rate.
The effect of the timing of discrete bursts of efferent vagal impulses on heart rate was determined in anesthetized dogs. Two modes of stimulation were employed. In the first mode, one stimulus burst was delivered per cardiac cycle. As the time from the beginning of the P wave to the vagal stimulus (P-St interval) was progressively increased, there was first a progressive lengthening of the car...
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ژورنال
عنوان ژورنال: Journal of Internal Medicine
سال: 2013
ISSN: 0954-6820
DOI: 10.1111/joim.12046